Railway-car-truck arrangement



G. G. FLOYD RAILWAY CAR TRUCK ARRANGMIT Nov. 27. 1923 "1,475,179

Filed Feb. 12. 1923 8-3 andH-of Figure 1.

Patented N 0v. 27, 19 23.

UNITED s r-Ares PA sNrorm-c a.

cannon a. non, orcmcaeo, firLfNOIS, nssronon' 'ro AMERICAN swam. romnms;

OF CHICAGO, ILILINOIS, A CORPORATION OF NEW JERSEY.

nsniwag-canrmucx nnnanenmmrn Application and rebmai '12, i923. Serial m5: 818,683.

To all wlwm itmay concern:

Be it known that I, Gnoncn G. From, a citizen of the United States, residin at Chicago, in the county of Cook and tate of'Illmois, have invented certain new and useful Improvements in Railway-CanTruck Arrangements, of which the following'is a specification 4 This invention relates to a railway car truck arrangement.

As is well known in the art, that portion of the tension member between the bolster columns is subjected to bending stresses in addition to tension stresses Consistent with other features of design, the distance between the bolster columns, accordinglIy, should vbe reduced as much as possible. n

leases in which it is desired to increase the spring capac ty, with all springs being lo- 20 cated between the bolster columns, some special arrangementpreferably is used for maintaining the distance between the hol ster columns as a minimum. 1

1 One objectvof the invention is to rovide a simple truck arrangement in whmh'the spring capacity is: increased, while at the same time the distance between the bolster columns and also the wheel base is miniinized, the side frame made of maximum strength and minimum we ht, and ample brake clearance-is providef 1 Another object is to provide a simple and efiicient truck of high, spring capacity adapted to meet the various requirements under service conditihns.

These and other objects are accomplished by means of the arrangement shown on the accompanying sheet of drawings, in which-- Figure 1 is'a fragmentary side elevation of a railway car truck, parts being in sec- ,tion, embodying my invention;

- F lgue 2 1s a fragmentary top plan view of the same arrangement; and

vFigures 3 and 4, respectively, 'are sec tional views taken in the planes of lines The .various novel features of the invention will be apparent from the following description and drawings and will be particularly pointed out inv the appended claims. i

Referring to the figures of the drawing, it will be: noted that my invention is illus trated in connection with a railway car, -truck including a side frame 10 in which, in

openings 21' in thegtension' mem definitely locating said spring seats. Aside v t this particularinstance, although not necessarily so, the tension member '11, compression'member 12 and bolster columns 13 are all integrally formed.' i

As is well known, f0ur springs associated with each side frame are usuall employed for supporting the. bolster and the load im. posed thereon, all of said four springs being seated at each end of the spring plank In this particular instance, it is desired to employ more than four springs; six are shown.

Two centrally arranged springs 14 are seated upon the outer end of the channel or central',portion of a spring plank 15 which spans theside frames and is'supported directly or indirectly upon the tension member 11 between the bolster columns 13. For holding the springplank in osition it will be noted that theupper sur ace of the tension member isprovided with two upstanding dowels lti'which are recei-vediinassociated openings 17 in the springip'lank.

These. dowels 16 also project above the springeplankwithin the interionof thecoiled springs 14 forpreventing the latter from being dislocated? In this truck of'incrdased spring'capacity there are two springs '18 ateachfside ofthe centrally arranged springs 14-. I To minimize the distance between. thGfbOlStQP-COlmums and to overcome: thejnecessity of weakening the side frame or altering the general contour thereofithe four end springs -18 are elevated with" respect to" the central springs 14. More strictly speaking, the four end springs .18 are mounted upon. elevated spring seats 19; one. spring seat 19 serving for two springs- 18 at one side of the central springs .14; andthe: other elevated spring seat 19,. serving for the other twoend springs'18 on the other side of said central springs 14'. Each of the elevated spring seatsl9 isflseparate from each other and separate from the tension member, but supported upon the latter. Each A spring seat 19 is provided withdowel ins on ing. er for v 4 20, V which are received '.by corres from the dowel pins 20, the underside of each spring .seat 19 is gangIed with respect to the top-of the springseat to conform to provided with additional dowel pins 22 lie " exten will be noted that the sprm which project through associated openings 23 in raised shelf-like portions 24' of the sprin plank 15. which shelf-like portions 3 over and rest upon the elevated spring seats 19. The dowel pins 22 extend upwardly beyond the spring seat shelves 24 and within the coiled s )rmgs 18 for co operating to prevent disp ement of said springs.

By referring particularly to Figure 1 it plank has a relatively narrow channel is a'ped central portion which rests directly upon the ten-- sion member 11- -between the elevated spring seats 19, the shelf portions 24 extending outwardly from the upper edges ofi; the

. flanges 25 of the spring plank.

in disclosed are obtained.

A stepped bolster 26 is provided which i rests upon the springs 14 and 18, the bolster 20 which erect-the same length but some of bcingstepped to awommodate said springs which are elevated with respect to others. Bythus oviding the combination herethe objects of the invention It-is my intentionlto cover all modifications of the invention fallingavithin the V 'pirit and scope of the following claims,

- tion ,ofaside frame inclndin l I, claim: 1"

. 7 ported-f on sai 1.;In a] railway car truck, the' combinatension and compression members and "b0 stcr columns, bolster spring supporting seats, one of which -1sc n a higher level thena certain one of y the other;seat'sand is separate from said other spring seat andseparate from I said tcnsionimember and niountedon the latter, and, rspring (plank having portions sup 'tension mem )er and said elevated spring seat, and s rin resting upon said springplank; w ere y an inlocated between bolster columns spaced uparta given distance. 2. in a railway cartruck, the combination of a side frame includin tension and compression members and b0 ter columns a spring'plank supportedby said'tension member intermediate said bolster columns and having portions at different levels upon which bolster supporting springs may rest,. and separate elevated sprang supporting members separate from said spring plank and separate from said tension member supported upon the latter and being located under the elevated portions of the SHlIlg. plank for co-operating to support the latter and certain springs whereby an increased number of standard springs may be located' between bolster columns spaced apart a. given distance.

3. In a railway car' trnck,the combination of a side frame including tension and compression members and bolster columns, a channel shaped spring plank having laterally extending shelf portions at a' higher levelthan the web of the channel P01110115, separate members separate from said spring plank and separatefrom said tension mem- )er and resting upon 'thelatter, interposed between said tension member and the elevirted shelf portions of said spring plank for supporting the latter, and bolster sup-- porting springs mounted within the channel portion'of thespring plank and on the elevated shelf portions thereof whereby an increased number of standard s rings may be located between bolster co umns spaced apart a given distance.

Signed at Chicago, Illinois, this 9th day 00 of February, 1923.

GEORGE G. FLOYD. 

